Heil Quaker ICP 1012420 Box Board 318973-401 requiring higher thermostat pressure to

requiring higher thermostat pressure to initiate airflow

cadmium-free brazing filler metal engineered specifically for high-integrity repairs on aluminum components

When replacing a rusted or compromised furnace flue box

When performing York furnace pressure switch troubleshooting

It will remain in its last position upon loss of power rather than returning to a default closed or open position

Heil Quaker ICP 1012420 Box Board 318973-401 requiring higher thermostat pressure toThe Heil Quaker ICP 1012420 Box Board is a critical OEM replacement part designed for high efficiency furnace applications. This Insulating C Box Board serves as a thermal barrier within the furnace collector box, preventing heat loss and protecting internal chassis components from extreme temperature fluctuations. Engineered for durability, this ICP furnace insulation board ensures the unit maintains optimal combustion efficiency and prevents cabinet